McArdle’s disease

defining characteristics

Exercise intolerance w/ premature fatigue in anaerobic ex, stiffness/weakness in exercising muscles relieved by rest; rhabdomyolysis w/ intense ex, second wind phenomenon

disease development

Myophosphorylase deficiency, preventing the breakdown of glycogen to glucose (glycogen cannot be converted to G6P)

potential causes

Defect in glycogen breakdown

epidemiology

risk factors

labimaging

Histology? Abnormal deposits of glycogen

conventional treatment

complications

prevention

protocols